JPS6323087B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a stop device for a container feeding device.

A similar type of stop at the inlet of a label applicator is known, in which a freely rotatable star stop wheel penetrates at least one star arm into the supply channel in each rotational position, so that the A star-shaped stop wheel is continuously rotated by a passing container unless it is restrained by a stop member engaging a recess in its front face (DE-AS2032462). This stop device allows a reliable and non-damaging closure of the supply channel by means of a star arm which moves synchronously with the container even at high transport speeds. It is also preferred that the acting and restraining forces on the star stop wheel are relatively small, and these forces do not affect the container itself. However, the star-shaped stop wheels that are rotated together by the bottles also cause some instability in the container movement, especially when there is a difference in the distance between the passing containers, collisions between the containers or between the containers and the handrail. causing collisions, thereby increasing noise production.

In addition, a stop arm rotatably disposed next to the handrail and having a wedge-shaped portion selectively moves between a stop position where the wedge-shaped portion blocks the supply passage and a neutral position where the supply passage is free. Stopping devices for container feeding devices that are movable are also known.
(DE−OS2126363). In this case, the movement is effected by a single-acting pneumatic cylinder with spring restoring, so that no reliable fixing in the end position is provided. This stop device does not influence the movement of the containers in the neutral position, but it is not possible, however, to stop the container flow reliably without damaging the containers. The main reason for this is, on the one hand, the movement of the stop arm, which moves out of synchrony with and against the container movement, when it enters the supply channel. On the other hand, very large forces and restraints are required to prevent the container from passing through by means of the stop device. These conditions can cause the container to break or topple.

The object of the present invention is to solve the problem of suppressing noise generation without affecting the movement of the container at all in a free supply passage under the working method described at the beginning, which is reliable and does not damage the container. is based on.

This problem is solved by the present invention.

In the stop device according to the invention, the star-shaped stop wheel, which is held in a neutral position, does not influence the movement of the container, so that no increase in the noise level occurs. On the other hand, the star-shaped stop wheel, after being released from the restraint in the neutral position, engages with the passing container and moves in unison with the container until it is released from the rotating device and restrained in the stop position. After release from the arrest in the stop position, the star stop wheel moves further in the transport direction together with the container, after which it is fixed in the neutral position. The rotation angle, acting force, and restraining force required at this time are small, and the synchronized movement between the star-shaped stop wheel and the container allows for a reliable working method that does not damage the container.

According to another feature of the invention, the rotating device allows the star stop wheel to slide, so that the star stop wheel is freely rotatable with the containers passing therethrough. In this way, a very simple construction of the rotating device is possible, which rotates the star stop wheel only through a small angular range at the desired speed until the star arm is engaged with a passing container. The synchronous movement between the star stop wheel and the container is not hindered, and the star stop wheel is moved only by the container.

There are various simple ways to construct the rotating device, such as a resilient compression roller system in contact with a cam plate integrally connected to the star, or a star-shaped stop wheel and pin-jointed belt by switching engagement joints or slip joints. There are bonds suitable for working with chains. Another feature of the present invention is that if the rotating device is provided with a star-shaped stop wheel or is equipped with a fixedly arranged permanent magnet and a magnetic body that attracts each other, an extremely simple structure with no consumable parts can be ensured. can be obtained.

According to another feature of the invention, the structure of the stop device can also be modified by providing a single movable stop member with two different restraining parts, which restrain the star-shaped stop wheel in the stop position or in the neutral position. Easy and reliable work.

According to another feature of the invention, the stop member has the shape of a rotatable double lever, which double lever is provided at both ends with stop pawls for star-shaped stop wheels. This allows, for example, a simple actuation of the stop element relative to an easily actuated pneumatic cylinder and a spring.

The stop element can, for example, cooperate with a recess or a projection which is arranged in a customary manner on the front face of the star stop wheel. However, according to another feature of the invention, it is even simpler if the stop member rests directly on the star arm of the star stop wheel.

The shape of the star-shaped stop car can be changed depending on the work conditions. In each case, according to a further feature of the invention, the star-shaped stop wheel with respect to its angular position relative to the container feeding device has a neutral position in each case between two mutually consecutive stop positions, in which case possible stop positions. Preferably, the number of the star-shaped arms and the number of possible neutral positions are each equal to the number of star-shaped arms. In this way, the star stop wheel only has to advance by a relatively small angle of rotation during movement between the various positions, and according to another feature of the invention, after release of the arrest in the neutral position, it is restrained in the next stop position. can be controlled so that Such a star stop wheel can be used for different container diameters without being exchanged.

Embodiments of the present invention will be described below with reference to the drawings.

The stopping device 1 shown in FIGS. 1 and 2 has a horizontal pin joint belt chain 3 driven in the direction of the arrow and a lateral handrail 4, which normally feeds bottles 5 to a processing machine, not shown. This is for blocking the supply passage of the bottle supply device 2. When shutting off,
The pin joint belt chain 3 continues to slide under the stopped bottle 5.

The stop device 1 includes a base plate 6 whose sides are fixed to a frame (not shown) of the bottle supply device 2.
Equipped with. A freely rotatable star-shaped stop wheel 7 is arranged on the base plate 6 via a bolt 8.
The star-shaped stop wheel 7 has a substantially cylindrical base body, and three star-shaped arms are formed at equal intervals around the base body. The spacing of the star arms is relatively large, so that the star stop wheel 7 can be completely outside the supply path defined by the handrail 4 when in the neutral position. This neutral position is shown in Figure 1.
At this time, the star-shaped stop wheel 7 does not come into contact with the passing bottle 5. In terms of rotational angle, this neutral position lies approximately midway between two mutually adjacent positions of the stop position in which each star arm protrudes maximally into the supply channel. The stop position is shown in FIG. 2, and it is clear that the supply path is completely blocked at this time. Star-shaped stop car 7
Because the three arms have the same shape, three stopping positions and three neutral positions are possible, and the angle between the neutral position and the next stopping position is approximately 60 degrees. be.

A double lever-shaped stop member 10 is rotatably arranged on the base plate 6 via a further bolt 9 .
The stop member 10 is capable of penetrating into the rotational path of the star-shaped arm in its end regions and is provided with stop pawls 11, 12 on both sides of the rotation axis. These stop pawls 11,
12 directly cooperates with the star arm of the star stop wheel 7,
At the neutral position, the stop pawl 11 at the front in the rotational direction of the star-shaped stop wheel 7, and at the stop position, the stop pawl 12 at the rear thereof restrain the star-shaped stop wheel 7 against rotation in the moving direction indicated by the arrow. It is located in The stop member 10 therefore has two different arresting positions, one of which is shown in FIG. 1 (neutral position).
The other one is shown in FIG. 2 (stop position). Both restraint positions can be further fixed with stoppers, not shown. One side is the bolt 9 and the other side is the stop member 10
The stop member 10 is biased into the stop position shown in FIG.

The movement of the stop member 10 into its end positions, ie the control of the star stop wheel 7, is effected by a simply actuated pneumatic cylinder 14 fixed on the base plate 6 in cooperation with a rotary spring 13. This pneumatic cylinder 14 has a piston rod with a roller 15 at its tip located on the lever arm of the stop member 10 on the side with the front pawl 11, so that the pneumatic cylinder introduces pneumatic pressure and moves the arm. Push it against the star-shaped stop wheel 7 and bring it to the neutral position. When the pneumatic cylinder 14 is deflated, the stop member 10 is rotated by the rotation spring 13 to the stop position.

A permanent magnet 16 is fixed below the star-shaped stop wheel 7 on the upper surface of the substrate 6, and the permanent magnet 16 is fixed to the lower surface of the star-shaped stop wheel 7, and three magnetic bodies that attract the permanent magnet and each other, i.e. Cooperates with iron piece 17. An iron piece 17 is disposed on each of the three star-shaped arms of the permanent magnet 16 so as to rotate the star-shaped stop wheel 7 from the neutral position in the moving direction. The permanent magnet 16 is an iron piece 17
in cooperation with the star stop wheel 7, which on the one hand, after releasing the arrest in the neutral position, penetrates the next star arm into the supply channel, and on the other hand forms a rotation device for the star stop wheel 7. It does not interfere with the synchronous rotation of the bottles passing by the wheel 7.

The description of the operation of the above-mentioned stopping device 1 will begin from the neutral position shown in FIG. In this case, as already mentioned, the pneumatic cylinder 14 is loaded with air pressure, so that the piston rod with roller 15 fixes the lever arm of the stop element 10 on the side with the front stop pawl 11 in the orbit of rotation of the star arm. , then 1 of the star arm
is in contact with the stop pawl 11. Due to the rotational moment acting on the star stop wheel 7 with the permanent magnet 16 and the adjacent iron piece 17, the star arm is pressed lightly against the stop pawl 11, so that no further fixing is necessary. The supply channel between the handrails 4 is completely free and the bottles 5 can pass through the stop device 1 without being blocked.

Now, when the supply passage is shut off to stop the flow of bottles, the air pressure in the pneumatic cylinder 14 is released. The stop member 10 is rotated by the rotation spring 13, so that the front stop pawl 11 moves out of the passage of the star arm and at the same time the rear stop pawl 12 rotates into the passage of the star arm. Now the star-shaped stop wheel 7 is rotated in the direction of movement by means of the rotating devices 16, 17 either immediately (if no bottles 5 are present) or when the wedge-shaped space between the next two bottles 5 passes; When the star arm facing the direction of movement enters the supply channel. Due to the bottle 5 present at the rear of the star arm, this star arm, in unison with it, is connected to that of the star stop wheel 7 by the fact that the star arm, which was previously in contact with the front pawl 11, comes into contact with the rear stop pawl 12. is moved until further rotation is prevented. The supply channel is then reliably blocked and any bottles 5 can no longer pass through the stop device 1 . When the bottle 5 is not present, the rotation of the star-shaped stop wheel 7 is stopped when the rotating devices 16 and 17 that attract each other are aligned in the vertical direction. At this time, in the rotating devices 16 and 17 that operate in a small angular range, the star-shaped stop wheel 7
In this case, the star-shaped arm is held before the complete stop position where it abuts the front stop pawl 11, and the star-shaped arm does not rotate to the complete stop position.

When the stop device 1 is to be opened again, air pressure is applied to the pneumatic cylinder 14, which rotates the stop member 10 into the neutral position shown in FIG. At this time, the rear stop pawl 12
The star-shaped arm that was in contact with becomes free. Bottle 5 is already located at the star-shaped arm protruding into the supply channel.
When the star arm is stopped, the star arm is moved completely away from the supply channel in the transport direction. That is, as the star-shaped arm that was in contact with the rear stop pawl 12 becomes free, the star-shaped stop wheel 7 is pushed by the bottle 5 and rotates counterclockwise from the state shown in FIG. 2. As the star-shaped stop wheel 7 rotates, the iron piece 17 that was attracted to the permanent magnet 16 in the state shown in FIG. Approach the magnet 16. As a result, the star-shaped stop wheel 7 gradually receives a biasing force in the counterclockwise direction, so that even if the bottle 5 is separated from the star-shaped arm, the star-shaped stop wheel 7 will not rotate due to this biasing force. It comes into contact with the front stop claw 11 and stops (Fig. 1). The supply channel is completely free again. Further, when the bottle 5 is not yet in contact with the star-shaped arm, the star-shaped stop wheel 7 remains approximately near the stop position until the bottle arrives.

[Brief explanation of the drawing]

Figure 1 is a top view of the stop device in the open position;
The figure shows a top view of the stop device in the closed position. 2... Container supply device, 7... Star-shaped stop car, 10
... Stopping member, 11, 12 ... Stopping pawl, 16,
17...Rotating device.

Claims (1)

[Claims] 1. A pin joint having a star-shaped stop wheel disposed beside the belt chain, rotatable in the transport direction, and capable of being restrained in a stop position that blocks the supply passage between the handrails; A stop device for a container feeder, in particular a bottle feeder, comprising a belt chain or the like and a side rail, such that when the star stop wheel 7 is in the neutral position it is completely outside the range of the feed path. In addition, rotating devices 16 and 17 are arranged on the star-shaped stop wheel 7 so that the star-shaped stop wheel 7 is restrained in either the stop position or the neutral position with respect to rotation in the transfer direction. It is noted that the star stop wheel 7 is configured in such a way that the star stop wheel 7 can be rotated slightly from its neutral position in the transfer direction to such an extent that the star stop wheel at least penetrates its star arm into the supply channel. A stop device for a container feeding device, in particular a bottle feeding device, characterized by a pin joint belt chain or the like and a side rail. 2. The container feeding device according to claim 1, characterized in that the rotating devices 16, 17 allow the star-shaped stop wheel 7 to slip, and the star-shaped stop wheel is rotatable together with the containers passing therethrough. Stop device for bottle feeding equipment. 3. The rotating device is provided with a permanent magnet 16 that is disposed on the star-shaped stop wheel 7 or fixedly disposed thereon, and a magnetic body 17 that corresponds to the permanent magnet 16. Stop device for container feeders, especially bottle feeders. 4. Claim 1, characterized in that the single movable stop member 10 is provided with two different restraining parts, by means of which the star-shaped stop wheel 7 is restrained in the stopped position or in the neutral position. Stop position for a container feeding device, in particular a bottle feeding device, according to any of paragraphs 1 to 3. 5. The stop member 10 has the shape of a convertible double lever, which double lever is equipped at both ends with stop pawls 11, 12 for the star-shaped stop wheel 7. 4. Stop position for a container feeding device, in particular a bottle feeding device, according to paragraph 4. 6. Claim 4, characterized in that the stop member 10 is in direct contact with the star-shaped arm of the star-shaped stop wheel 7.
Stop device for a container feeding device, in particular a bottle feeding device, according to item 1 or 5. 7 The star stop wheel 7 with respect to its angular position relative to the container feeder 2 has a neutral position in each case between two mutually consecutive stop positions, in which case the number of possible stop positions and the number of possible neutral positions are 7. Stop device for a container feeding device, in particular a bottle feeding device, according to any one of claims 1 to 6, characterized in that the numbers correspond in each case to the number of star-shaped arms. 8. Stopping device for a container feeding device, in particular a bottle feeding device, as claimed in claim 7, characterized in that the star-shaped stopping wheel 7 is locked in the next stopping position after being released from the locking in the neutral position.